Hose-clamp.



W..L. CRABILL & W. E. WILEY.

' Hose CLAMP.

APPLICATION FILED SEPT. 22. 1917.

Patented J un 11, 1918.

tion,

F 1g. 2 is a cross sectional view taken longitudinally along the axis UNITED @TATE PATENT @lihllm WILLIAM L. CRBILL AND WILLIAM E. WILEY, 0F BATTLE CREEK/MICHIGAN'.

HOSE-CLAMP.

Speeication of Letters Patent.

Patented aan@ ii, raie.

\ Application lfiled September 22, 1917. Serial N o. 192,662.

Clamps, of which the following is a specif,

cation. l

This invention relates to an .improved clamp for use in attaching hose to a nipple,l

pipe, or other conduit. It is an essential object' of our linvention that the clamp should be extremely simple in construction, inexpensive to manufacture, and effective in its grip upon the hose. With these ends in View, we employ wire, preferably round in cross section,4 which is lapped around the hose in two coils, instead of the ordinary band or strap of metal which requires more material ,in its use. Our invention Which Will more fully appear from the specifica tion and claims isclearly illustrated in the accompanying drawing wherein- Y Figure l is a perspective View of a hose clamp of the bolt, an edge view of the clamp in elevation being also afrded; andf 1g. 3 is a ra entary perspective View of a modified fornof hose clamp. A, g

In the drawing. similar reference numerals refer to similar parts in the different views.

upon itself 'substantiallygat the middle point, designated as 3. In this`manner we provide a double formation of wire which is suitably curved in two coils marked 4 and 5. The free ends of the wire coils designated as 6 and 7 are turned tol parallel positions which are more or less radial with respect to the axis of the hose to provide bearings against which is secured a transverse element such as an eye plate 8. A convenient method of attaching the plate to the ends of the wire is by welding.

In their encircling position upon the hose the two coils of the clamp lie in substantially parallel planes at every point throughout their length except at the bend 3. The wires adjacent this bend are spaced Sullimade in accordance with our inven Our invention in its preferred embodiment consists of a single length of wire'bent illustrate or describe,

or bent to encirclethe hose One such modification is ciently close. together to provide a tongue 9 which may enter between the coils l and 5 adjacent the ends 6 and 7. Each coil is suitably crimped to provide bearings 10 and 11 against which may seat a second transverse element, such as a nut 12. rThis nut we prefer to secuiefixedly in -place by a weld, or other appropriate means. Likewise theA sections of wire lapping against each other along the crimp are preferably welded together to secure additional strength. A threaded stove bolt 13 is entered through the eye plate and engaged with the nut so as to draw the ends ofthe clamp together when properly rotated. In this manner the hose is clamped tightly upon the nipple or pipe with which it is connected.

The hose clamp which we have shown and describedv possesses advantages over any with which we are aware in the following particulars: It is exceedingly simple, requires but few bends, and consequently it is easy to manufacture. At no point are its .coilsin helical'formation. The transverse braces for the bolt are supplied by means of the eye plate 8 and the nut 12, each of which may be secured in place by the simple expedient of a weld.' The tongue 9 consists of double wires joined'at the end 3 so as to preserve eachI Wire in alinement with the otherl at all times. Byl this means a firmer clamping action 'can be secured than where the tongue ends are each independent ofthe other. .l

V'It will be understood that our invention is useeptibleof several variations and modifications which lwe have not attempted to but which would readily lsuggest themselves to anyone skilled in the art to which thisl invention relates. shown 'in Fig. 3 yof the drawings. In this case wire coil bearings 10 and l1 span or encircle the nut 12, to which they are welded or otherwise attached, instead of both lying on one side of the nut, as in the form shown in Figs. 1 and 2. Other modifications are also to be considered as within the scope of our invention, as defined by the appended claims which follow. 4

We claim: r

1. A. hose clamp consisting of a single length of wire folded at its center and bent to Y provide double coils spaced apart uniformly except at the folded end which is adapted-to enter between the :free ends, the

coils near the folded end being each crimped to provide a bearing for a nut, and the free ends being each turned in substantially parallel relation to the crimps, an eye plate secured between the turned free ends of the coils, a nut secured between the crimps, and a threaded element between the eye plate and nut adapted to draw the ends of the clamp together, substantially as described.

2. A hose clamp consisting of ya single length of wire bent to provide double coils spaced apart uniformly for the major portion of their length, the coils near one end thereof being provided with a crimp and near the other end with a bend, an eye plate welded to the coils near one end, a-nut welded to the coils near their other end, and a threaded bolt between the eye plate and nut adapted to draw the ends of the clamp together, substantially as described.

3. A hose clamp consisting -of a single length of wire bent in double formation and curved to provide two coils adapted to surround a hose in arallel relation, the wire being bent lateral y between the coils to provide a tongue at one end of the coils adapted to occupy a lapping relation with the other end of the coils, bends in the coils near the ends thereof providing bearings in substantially radial relation to the axis of the hose, an eye plate extended transversely between one set of bearings and a nut between thev (other, and a threaded bolt between the eye plate and nut adapted to draw the ends of the clamp together.

Lacasse- 4. A hose clamp consistinf of a single length of wire bent in double 'orination and curved to provide two coils adapted to surround a hose, the two coils at corresponding places being crimped to provide bearings one in line with each coil for an element extende ing transversely therebetween, the lapping sections of. wire forming the crimp being welded together, and each coil being elsewhere bent at corresponding places to provide bearings for another transverse element, two elements arranged transversely between the different sets of bearingsyand a threaded bolt between the two transverse elements for drawing the ends ot the clamp together, substantially as described.

5. A hose clamp consisting of a single length of wire bent to provide an encircling coil for a hose, and having near one end thereof a crimp formed by bending portions of the wire in parallel relation in the plane of the coil and in a direction substantially radial .with respect to the axis of the hose and welding together the facing surfaces of the wire portions which form the crimp,4 the other end of the wire coil being provided also with a bent portion eXtendin in a direction which is likewise substantiay radial with respect to theaXis of the hose, elements engageable by a bolt secured to the crimp and to the bent portion at the other end, and a bolt arranged operatively between the elements, substantially as described.

WILLIAM L. C RlilBILL.v

LIAM E. WILEY. 

